Confirmatory Virucidal Activity of Ionised Active Water S-100® on the SARS-CoV-2 Virus.

Ionised active water S-100® has been proposed as an original solution for use in dermocosmetics and for the treatment of wounds such as burns and atopic dermatitis. Among the mechanisms of action that are not completely understood, an antimicrobial activity would appear to be important. In the context of the COVID-19 pandemic, we assessed the inactivating efficacy of this solution on SARS-CoV-2 based on the recommendations of the NF-EN-14476+A2 standard.

Buttiauxella massiliensis sp. nov., Isolated from a Human Bone Infection.

Strain Marseille-P9829 was isolated from a bone sample collected from an open right fibula fracture from a 46-years old patient. Strain Marseille-P9829 (= CSUR P9829 = DSM 110695) was a Gram-negative, non-spore-forming and non-motile bacterium. This strain had a positive catalase activity but was oxidase-negative.

Interest of bacterial pangenome analyses in clinical microbiology.

Thanks to the progress and decreasing costs in genome sequencing technologies, more than 250,000 bacterial genomes are currently available in public databases, covering most, if not all, of the major human-associated phylogenetic groups of these microorganisms, pathogenic or not. In addition, for many of them, sequences from several strains of a given species are available, thus enabling to evaluate their genetic diversity and study their evolution. In addition, the significant cost reduction of bacterial whole genome sequencing as well as the rapid increase in the number of available bacterial genomes have prompted the development of pangenomic software tools.

Insight into the Lifestyle of Amoeba during Bioreactor Growth Using Transcriptomics and Proteomics.

C2c maky is a thermophilic free-living amoeba strain that showed ability to eliminate , a pathogenic bacterium living in the aquatic environment. The amoeba industry has proposed the use of as a natural biocide to control proliferation in cooling towers. Here, transcriptomic and proteomic studies were carried out in order to expand knowledge on produced in a bioreactor.

Vermamoeba vermiformis CDC-19 draft genome sequence reveals considerable gene trafficking including with candidate phyla radiation and giant viruses.

Vermamoeba vermiformis is a predominant free-living amoeba in human environments and amongst the most common amoebae that can cause severe infections in humans. It is a niche for numerous amoeba-resisting microorganisms such as bacteria and giant viruses. Differences in the susceptibility to these giant viruses have been observed.

Description of Virulent Factors and Horizontal Gene Transfers of Keratitis-Associated Amoeba Acanthamoeba Triangularis by Genome Analysis.

Acanthamoeba strain SH 621 is a free-living amoeba belonging to ribo-genotype T4. This ubiquitous protist is among the free-living amoebas responsible for keratitis, a severe infection of human cornea. Genome sequencing and genomic comparison were carried out to explore the biological functions and to better understand the virulence mechanism related to the pathogenicity of keratitis.

Intracellular Behaviour of Three Strains within Three Amoeba Strains, Including C2c Maky.

is a facultative intracellular pathogen found in aquatic environments as planktonic cells within biofilms and as intracellular parasites of free-living amoebae such as . This pathogen bypasses the elimination mechanism to replicate within amoebae; however, not all amoeba species support the growth of . C2c Maky, a non-pathogenic amoeba, was previously demonstrated to possess the ability to eliminate the strain Paris.

Investigation of potential pathogenicity of Willaertia magna by investigating the transfer of bacteria pathogenicity genes into its genome.

Willaertia magna c2c maky is a thermophilic amoeba closely related to the genus Naegleria. This free-living amoeba has the ability to eliminate Legionella pneumophila, which is an amoeba-resisting bacterium living in an aquatic environment. To prevent the proliferation of L.

Whole-Genome Sequence of French Clinical Peptoniphilus catoniae Strain P8546.

In 2016, was reported as a bacterial species isolated from a healthy Peruvian male. In 2018, a clinical strain from the same species was isolated from the stool of a French patient with kidney cancer. The genome of this strain, P8546, was 1,725,465 bp long, with 33.

Genomic analysis of a Raoultella ornithinolytica strain causing prosthetic joint infection in an immunocompetent patient.

We sequenced the genome of Raoultella ornithinolytica strain Marseille-P1025 that caused a rare case of prosthetic joint infection in a 67-year-old immunocompetent male. The 6.7-Mb genome exhibited a genomic island (RoGI) that was unique among R.

Orpheovirus IHUMI-LCC2: A New Virus among the Giant Viruses.

Giant viruses continue to invade the world of virology, in gigantic genome sizes and various particles shapes. Strains discoveries and metagenomic studies make it possible to reveal the complexity of these microorganisms, their origins, ecosystems and putative roles. We isolated from a rat stool sample a new giant virus "Orpheovirus IHUMI-LCC2," using as host cell.